Flat 3 Carysfort House West Halkin Street London SW1X 8JS

This site has had 2 applications since 2026.

• 26/05493/LBC Awaiting decision

  Flat 3 Carysfort House West Halkin Street London SW1X 8JS

  Replacement of single glazed windows at the ground floor flat front elevation, with slimline double glazed windows in matching style.

  Submitted 12 Aug 2026 Heritage and listed buildings

1. 12 Aug 2026

   Received by Westminster

2. 18 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 7 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 61 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 85 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Flat 3 Carysfort House West Halkin Street London SW1X 8JS

  26/05493/LBC Submitted 12 Aug 2026 0m away

  90% historically approved · decision due ~7 Oct

  Replacement of single glazed windows at the ground floor flat front elevation, with slimline double glazed windows in matching style.

  Awaiting decision Heritage and listed buildings Windows or glazing

• 15 Halkin Mews London SW1X 8JZ

  25/08082/FULL Submitted 6 Nov 2025 16m away

  87% historically approved · decision due ~1 Jan

  Installation of two sets of traditional-style window security bars to the existing ground floor front windows.

  Awaiting decision Full applications Windows or glazing 10 docs

• 15 Halkin Mews London SW1X 8JZ

  25/08066/LBC Submitted 5 Nov 2025 16m away

  90% historically approved · decision due ~1 Jan

  Installation of two sets of traditional-style window security bars to the existing ground floor front windows.

  Awaiting decision Heritage and listed buildings Windows or glazing 11 docs

• 3C Motcomb Street London SW1X 8JU

  26/03200/LBC Submitted 14 May 2026 19m away

  90% historically approved · decision due ~9 Jul

  Extension of the existing fire escape platform and replacement of the fire escape door. [Linked to 26/03199/FULL]

  Awaiting decision Heritage and listed buildings Extension 10 docs

• Flat 4 16 West Halkin Street London SW1X 8JL

  25/07921/FULL Submitted 31 Oct 2025 21m away

  Creation of terrace on flat roof and replacement of a window with a door to access the terrace.

  Withdrawn Full applications Windows or glazing 20 docs

• 11A West Halkin Street London SW1X 8JL

  25/07306/TELNOT Submitted 26 Sep 2025 27m away

  Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Building.

  Decided Telecoms

• 26/06024/FULL Awaiting decision

  House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

  Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)

  3 Sep 2026 Full applications
• 26/06017/FULL Awaiting decision

  38 Lauderdale Mansions Lauderdale Road London W9 1NE

  Installation of an external AC Unit / Heat Pump at roof level.

  2 Sep 2026 Full applications
• 26/05938/FULL Awaiting decision

  24 Vincent Square London SW1P 2NJ

  Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.

  1 Sep 2026 Full applications
• 26/05935/FULL Awaiting decision

  47 Hereford Road London W2 5AH

  Installation of one number new external condenser unit to the southerly elevation service alley.

  1 Sep 2026 Full applications
• 26/05959/FULL Awaiting decision

  Basement And Ground Floor 50 New Bond Street London W1S 1BJ

  Installation of three new condensers on the roof, within an existing designated plant area.

  1 Sep 2026 Full applications